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International Journal of Mining and Geo-Engineering، جلد ۴۷، شماره ۱، صفحات ۸۱-۹۰
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عنوان انگلیسی A 3D elasto-plastic FEM program developed for reservoir Geomechanics simulations: Introduction and case studies
چکیده انگلیسی مقاله The development of yielded or failure zone due to an engineering construction is a subject of study in different disciplines. In Petroleum engineering, depletion from and injection of gas into a porous rock can cause development of a yield zone around the reservoir. Studying this phenomenon requires elasto-plastic analysis of geomaterial, in this case the porous rocks. In this study, which is a continuation of a previous study investigating the elastic behaviour of geomaterial, the elasto-plastic responses of geomaterial were studied. A 3D finite element code (FEM) was developed, which can consider different constitutive models. The code features were explained and some case studies were presented to validate the output results of the code. The numerical model was, then, applied to study the development of the plastic zone around a horizontal porous formation subjected to the injection of gas. The model is described in detail and the results are presented. It was observed that by reducing the cohesion of rocks the extension of the plastic zone increased. Comparing to the elastic model, the ability to estimate the extension of the yield and failure zone is the main advantage of an elasto-plastic model.
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نویسندگان مقاله امین چمنی |
department of petroleum engineering, curtin university, arrc building, 26 dick perry avenue, kensington, wa, 6151, australia.

وامق رسولی |
department of petroleum engineering, curtin university, arrc building, 26 dick perry avenue, kensington, wa, 6151, australia.

نشانی اینترنتی http://ijmge.ut.ac.ir/article_50092_da0798d326f592be5ce4301e37b92173.pdf
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